[10289] Adjust creature models system

This change will:
* make it easier to use cached data directly without any modifications
* correct issues regarding invisible models
* simplify certain aspects of model selection itself and make it somehow easier to control and maintain special cases.

Two new fields added to creature_model_info, to store modelid_alternative and modelid_other_team
* _alternative holds an alt. model, for cases where gender are the same, or is not male/female.
* _other_team is generally used for totem models, but may have future use.

This commit will possibly break a few things (visually) and will require DB projects to update their creature_template models data.
It is advised to use cache data as-is, and in addition fill creature_model_info for certain models, totems in particular, for expected appearance.

Signed-off-by: NoFantasy <nofantasy@nf.no>

src/shared/Database/SQLStorage.cpp

@@ -28,7 +28,7 @@ extern DatabaseMysql  WorldDatabase;
 const char CreatureInfosrcfmt[]="iiiiiiiiiisssiiiiiiiiiiifffiffiifiiiiiiiiiiffiiiiiiiiiiiiiiiiiiisiiffliiiiiiiliiis";
 const char CreatureInfodstfmt[]="iiiiiiiiiisssiiiiiiiiiiifffiffiifiiiiiiiiiiffiiiiiiiiiiiiiiiiiiisiiffliiiiiiiliiii";
 const char CreatureDataAddonInfofmt[]="iiiiiis";
-const char CreatureModelfmt[]="iffbi";
+const char CreatureModelfmt[]="iffbiii";
 const char CreatureInfoAddonInfofmt[]="iiiiiis";
 const char EquipmentInfofmt[]="iiii";
 const char GameObjectInfosrcfmt[]="iiissssiifiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiis";